651概率简单derivationshort
Fair Corridor Hit Probability 1
题目
A symmetric random walk starts at 2 on the integer line and stops when it first hits 0 or 7. What is the probability that it hits 7 before 0?
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提交作答时记录，用于后续平均用时统计。
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题目
A symmetric random walk starts at 2 on the integer line and stops when it first hits 0 or 7. What is the probability that it hits 7 before 0?
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
你的答案